Federated Farmers access spokesman Anders Crofoot said: "There have been no issues arising from it. That's been quite good. The Walking Access Commission has done a great job with it. They're to be commended."

An upgrade means the system can now be accessed from any location, either by smartphone or phone-capable tablet computers.

Third parties will also be able to submit their access information and have it included: things like campsites, beach access or walking and cycling tracks.

"That will be a real positive," said Mr Crofoot, describing how it's been difficult for farmers to communicate new or updated information about their properties. The potential embedding of contact information was a plus, too.

The walking access mapping system has been visited more than 100,000 times. To try it go to www.wams.org.nz